What are the benefits of cleaning the automobile heating system?

Generally speaking, the ventilation of the landlord's car mainly depends on air conditioning and heating system, and the air conditioning and heating system of most cars has internal circulation and external circulation. Internal circulation means that the system sucks air from the car, heats or cools it, and then blows it out from the air outlet inside the car. Generally, there is no air inlet filtering device for internal circulation. External circulation is to inhale air from outside the car, heat or cool it, and then blow it out from the air outlet inside the car.

Because the air outside the car will change with different road conditions, such as a lot of dust, choking exhaust gas and so on. Most cars have air intake filters at the external circulation air intake, just like the filters of air conditioners at home, which are generally called pollen filters or dust filters.

Ventilation should adopt external circulation function. However, the warm air conditioning system has been used for a long time, and there are a lot of dust and bacteria on the air duct, warm air tank, air conditioner evaporator and air intake filter device, which makes the air blown out of the air outlet in the car unclean or smelly. This requires everyone to clean the heating and air conditioning system correctly to ensure the cleanliness of the ventilation in the car.